Oil-burner.



UNITED STATES `PATENT OFFICE,

AUGUST JOHNSON, OF SAN FRANCISCO, CALIFORNIA.' j

OIL-BURNER.

srEcrFrcATIoN fcmiing part of Leifrs Patent No. 702,008, aaien .time 10,1902.

Application iiledApiil 13.1901. senil No. 55,646. ou model.)

To @ZZ whom it may concern,.-

. Be it known that I, AUGUST JOHNSON, a citizen ofthe United States, residing in the city and county of San Francisco, State of California, have invented an Improvement in Oil` Burners; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to improved apparatus for the combustion of Oil to .be used especially in furnaces and like heating devices.

It consists of" theconstruction and combination of parts hereinafterdescribed vand Figure 1 is a longitudinal .central section?,

' through the burner;V Fig; 2 is a cross-section of the same on line @c m of Fig. 1 looking 'in .the direction ot the arrow. Eig. 3`is`a section of the plate on which the oil is delivered.'k

v4The burner consists of an exterior tubeA and an interior tube B.; The vexterior-'tube g has a flattened lateral Opening made in the front by closing the upper and lower portions of the tube toward each other and extending them out transversely, as shown at 2. Rearwardly the tube becomes gradually cylindrical in cross-section and is adapted to screw or be otherwise connected to a T,as at 3. The rear end has an opening which is essentially in line with the central portion of the apparatus and which is provided with a glazed part of the outer tube A, While the lower part is essentially flat.- This inner-section has also a iiattened transversely-elongated dis charge-opening mouth at the front, as shown at 6, and this mouth is interior to and approximately coincident with the mouth of the outer tube, as shown. The inner tube is suitably supported within the outer tube and may be held in place by means of lugs, as at 7, extending into corresponding seats in the outer tube, and the latter tubeV mayjbe made in. two parts, so that when the upper part is removed the interior tube B can beset in place, and its lugs may be clamped when the upper part of the outer tube is secured tothe lower part, which is done by bolts or screws-or in any suitable or desired manner. The rear end has its lower portion cut awayin'= anangular manner, as shown at8', so that thi'sfangular openingstands approximatelyin line above the rear halfof the inlet opening orpipe 5, so that when air is delivered into the apparatus a ,portion of it passes directly into the innertube, ,thence through its dischargemouth,and aportion is delivered into the outer tube and passes around the inner tube., l A slidablevdamper 9 surrounds the inner tube andis connected by rods l0 with a handle, as at 1l, by which the damper can be moved -forward or back, theA rods sliding through appropriate openings in the rear ofthe T, vand when the damper is moved the amount of lair admitted LtoA4 the outer tube can beregulated with relation to that which isadmitted to' theinuerytube. Notches 19 are made in Oneof thvrods 10 and a weighted link 20 hangs from. either notch close to the point where the rod passes into the chamber, so that it acts as lal stop to prevent the .air-draft from moving'the damper. By disengaging the stop any adjustment of the damper may be made.

` The oil is delivered into the inner Atube through a pipe 12, arriving by'any suitable conduit, as at 13.

part of both of the tubes A and B, and it has a removable plug, as at 14, in line with it, so

rthat by the removal of the plug the interior of the pipe can be cleaned' or inspected at will.-

livered into a plate 15, the rear 'edgeofwhich face and to form a reservoir or storage'for the distributor.- The upturned edge 16 has The tube 12 is here Shownv as extending vertically through the supper' The oil liowing from this pipegis de# tube B. From this point ofi attachmentfthe surface and at the front-endisfupturned, as shown at 16, so thatthe upturned front serves loo serrations or notches formed upon it, as at 17,

and these notches allow the oil to flow out through them, the bottoms of the notches being kept approximately level, so that the flow will be the same through each of them. From the front of these notches the tapering channels 18 extend down the inclined outer front of the upturned portion 16, as is well shown in the transverse section, Figs. 2 and 3. These tapering channels become deepest where they connect with the V-shaped notches 17 and gradually become more shallow, disappearing at a point above the bottom of the upturned fronts 16. The object of these notches and channels is to provide for a more perfect distribution of the oil and its delivery into the path of the air-blast in a'thin and continuous sheet. This is effected as follows: The oil supplied into the concaved distributingplate l5 flows down to the upturned front 16 and passing out through the notches 17 across this front is received into the channels 18. The upper ends of these channels are sulficiently deepto receive and hold all the oil which iiows from the notches; but as they become shallower and narrower from this point until they disappear in the surface the oil must overflow from these channels and spread out over the intermediate surface between the channels, so that when it reaches the lower edge of the front 16 it will fall therefrom in a perfect sheet, and being there caught by the air-blast is discharged through the front opening 6, from which it is ejected. At this point the additional air delivered from the pipe A above and below the pipe B mngles with the discharge from the inner pipe and by the pe` culiar curvature of the discharge-passages the mixed sheet of vaporized oil and air is so discharged as to produce a very perfect combustion.

Having thus described my invention, what l claim as new, and desire to secure by Letters Patent, is-

l. In an oil-burner, the combination with burner-tubes, an air-supply, and a fuel-feed pipe, of an inclined oil-distributing plate disposed below the discharge end of the feedpipe and having its lower edge turned upward to arrest the iiow of oil and form a shallow reservoir and the upper portion of said upturned portion having notches with channels leading therefrom down the outer front of the upturned portion.

2. In an oil-burner the combination with burner-tubes, an air-supply, and a fuel-feed pipe, of an inclined oil-distributing plate disposed below the said pipe and receiving the oil therefrom said plate being concaved in the direction of its length and having its lower edge upturned to arrest the oil and form a shallow reservoir which extends transversely across the front end of the plate, and the upper edge of said upturned portion ofthe plate having notches with tapering channels ex tending from the bottom of the notches down the outer front of the upturned edge and made deepest at the base of the notches and becoming more shallow and disappearing at a point above the bottom edge of said upturned porA tion.

3. The combination in an oil-burner of an exterior air and an interior air and oil pipe, means for supplying and regulating the How of air through the two pipes, flattened horizontal elongated discharge-mouths for the two pipes approximately in the same vertical plane, an oil-supply pipe leading into the inner burner-pipe at the rear of the dischargemouth, a declining plate upon which the oil is delivered, said plate having an upturned front with notches formed therethrough,channels connecting with each of said notches eX- tending down the outer front of the upturned portion, said channels having the greatest depth at their junction with the notches and `disappearing on the surface-level at points above the bottom of the plate.

In Witness whereof l have hereunto set my hand.

AUGUST JOHNSON.

Vitn esses:

S. I-I. NoURsn,

.lnssin C. BRODIE. 

